Dynamo-electric machine.



siemens enrnn'r ernten.

SEE-I l. FEENEY, OF SCHENECTDY, NEW YORK, ASSIGNOR TO GENERAL ELECTRIC COJANY, A CORPORATON 0F NEW YORK.

DYNAEIIO-ELECTRIC MACHINE.

Speo'lcation of Letters Yatent.

a ne! application hie-Jl .April S, 1908. Serial No. L25,395.

vded and this application filed December 29,

Serial No. 535,501.

Ee all wiz/m. 'it may concern:

f it nnovvnlthat l, Josemi l). ltnnnnya citizen of the United States, residing` at Schenectady, county ot Schenectady, State of New -York, have invented certain new and useful vimprovements in Dynamo-Electric i ychines, ot which 'the following is a specification.

rEhe present application is a division ot my prior application, Serial lo 25,395, dei "l pril e, 1908.

,l y invention relates to dynamo-electric machines and morev particularly to means :tor srqiiporting the end turns or connections which entend beyond the cores ot the rotors of such machines, and has for its objecta simple arrangement whereby such end turns may be rigidly secured in place against the action of centrifugal torce and at the same;

- time are well ventilated.

lleretofore in constructing lthe supports tor end turns oi the rotors or high speed dynamo-electric machines it has heen :ound neeessar-f to hold the end turns between ings oit metal. These rines form 's pr= ing` circulation ot an' past the coils se that the heat gene ated in the coils is retained. By employing,` supports according,` to my invention the end turnsare etiiciently ventilated and no such pockets are formed. jo this end, l provide a supporting member having members mounted thereon against which the end turns are clamped and means tor holding` said end turns in place against centrifugal torce comprising members having portions interlocking with said members mounted on the supporting member.

@ther features ot novelty which charaeterize my invention are poin ed out with particularity in the claims annexed to and 'forming a part ot this specification. For a hotter understanding of my invention, however, reference may he had to the following description taken in connection. .with the accompanying; drawing, in which Figure- 1 is an end view of: aportion of the rotor of a dynamo-electric machine embodying my invention, "with parts broken away; 2 is a sectional vieiv ot the rotor oi Fig. 1 and 3 a plan view. of the end turns ot the rotor of Fig. 1.

The spider 1 is mounted upon the shaft 2 and supports the laminations 3'. The coils el are embedded in slots in the laminations and have the end turns or connections 5. lhese parts mayassume any usual or preferred form.

The end member 6 carries arms 7 upon which are mounted supportinw' members 8 against 'which the end turns 5 are clamped. l have shown the supporting members 8 as rings having` flanged portions 9. The arms 7 and rings S are keyed together by means of lrcys 9 to prevent the rings S from r0- tating relatively to the arms. The end turns are held in place against centrifugal fonce by means o1"- members 10,'11 and 12 having flanged portions 13 interlocking with the flanged portions 9 on the rings 8. The members 10, 11 andA 12, as shown in the drawing,-

inay have overhanging portions which enthe exterior of the end conmv "ons of the coils. rhese members have stem portions vvhich pass between the coils and are suitably spaced apart by means of doivel pins 14. which also keep them from moving when properly spaced. By thus spacing the members 10, 1,1 and 12 apart, passages are provided so that air may pass between these members and the rings 8 and thereby keep the end turns cool. The overhanging portions of: the members engage the exterior surface of two adjacent coils, and conse quently they are T-shaped. rl`he members 11' engage theeorners 15 of each end turn. The members 12 are L-shaped, thel overhzmging portions of which engage the extreme outer and inner end turns. An end ring` 1.6 provided with Ventilating holes 17 is fastened to the arms V7 by means ofholts 18. This end ring presses against the members 12 which engage the outer end turns, vand thereoy holds the entire supportlng means rigidly 1n place.

desire it to ne understood that my inven- I tion is not limited to the particular construction shown and described, and aim in the appended claims to cover all modiications', which do not depart from the spirit ot' my invention.

fi/"hat l claim as new and desire to secure by Letters Patent ot the United States, is,-

1'. ln a dynamo-electric machine, a rotatable member, coils therefor having end turns orv connections, a supporting member having members mounted thereon against which said end turns 'are clamped, and means for holding said end turns in place against centrifugal force comprisin members. having portions interlocking with said members mounted on the supporting member. l

2. In a dynamo-electric machine, a rotatable member, coils therefor having end turns or connections, a supporting member, rings mounted on said supporting member against which said end turns are clamped, and meansx for holding said end turns in place against centrifugal' force comprising members having portions interlocking withsaid rings.

3. In a dynamo-electric machine, a rotatable member, coils therefor having end turns or connections, ,a supporting member having arms, rings supported on said arms against which said end members are clamped, and means forholding said end turns in place against centrifugal force comprising inem'- bers having portions interlockingy with said rings.

et'. In a dynamo electric machine, a rotatable member, coils therefor having end turns or connect-ions, a supporting member having members mounted thereon against which said end turns are clamped, and means for holding said end turns in place against cen-4 trifugal force compri/sing members having stem portions passing between the end turns and portions interlocking with said members mounted on the supporting member.

5. In a dynamo-electric machine, a rotatavble member, coils therefor having end turns or connections, a supporting member having lmembers mounted thereon against which said end turns are clamped, and means for holding said end turns in place against centrifugal nforce comprising members having fianfged portions engaging the exterior surface of said end turns, stem portions passing between said end turns and portions interlocking with said members mounted on' the supporting member. Q.. In a dynamo-electric machine, a rotatable "member, coils therefor having-end turns or connections, a supporting member, rings mounted on said supporting member against which said end turns are clamped, and means lfor holding said end turns in place against centrifugal force comprising members having stem portions passing between said end turns and portions interlocking with said rings. Y'

7. In a dynamo-electric machine, a rotatabie member, coils therefor having end turns or connections, a supporting member, rings mounted on said supporting member against l which said end turns are clamped, and means for holdin said end turns in place against centrifuga? force comprising 'members having fianged portions engaging the exterior surface of said end turns, stem portions passing between the end turns and portions interlocking with said rings. f

8. `In a dynamo-e1ectric machine, a rotatable member, coils therefor having end turns or connections, a supporting member having arms, rings supported on said arms against which said end turns are clamped, and means for holding said end turns in piace against centrifugal force comprising members having fianged portions engaging the exterior surface of said end turns, stem portions lpassing between the end turns and portions interlocking with said rings.

In witness whereof, I have hereunto set my hand this 27th day of December, 1909.

JOSEPH P. FEENEY.

HELEN Onronn. 

